a EULAR endorsed study

In order to determine the burden of inflammatory rheumatic diseases across Europe, the European League Against Rheumatism (EULAR) unique-methodology prevalence survey of rheumatoid arthritis (RA) and spondyloarthritis (SpA) was carried out in several European countries, including Serbia. Aiming to enable comparable results, it comprised a common two-stage approach: a detection phase (validated screening telephone questionnaire, primarily tested in France1 2) and a confirmation phase (according to a certified rheumatologist or, for previously non-diagnosed cases, a rheumatology examination). The Serbian SpA prevalence survey was conducted by 30 trained interviewers on urban population in four Serbian towns: Belgrade (north), and Čačak, Kruševac and Užice (south), by telephone (every 100th telephone number) from April t